Efficacy of Linezolid against Methicillin-Resistant or Vancomycin-Insensitive Staphylococcus aureus in a Model of Hematogenous Pulmonary Infection

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Abstract
We investigated the activities of linezolid, vancomycin, and teicoplanin in a murine model of hematogenous pulmonary infection with Staphylococcus aureus . Our results demonstrate that linezolid clearly reduced bacterial numbers in the methicillin-resistant S. aureus hematogenous infection model and significantly improved the survival rate of immunocompromised mice infected with vancomycin-insensitive S. aureus compared with vancomycin and teicoplanin. The pharmacokinetic profiles also reflected the effectiveness of linezolid.